Comcast Cable Communications
Philadelphia, Pennsylvania, United States · Founded 1963
10001+ employees · CMCSA
Sourced & current · updated Jul 27, 2026Website
Comcast's residential cable, internet, voice, and home-security business unit. Operates under the Xfinity consumer brand. Houses xFi advertising technology and consumer data assets feeding NBCU/Effectv.
Where they sit
Stack tier: Ecosystem Services (A)
Identity ResolutionConnected TV PlatformData Management Platform
One of the largest U.S. cable and broadband operators, serving as the foundational data and infrastructure layer for Comcast's AdTech and addressable advertising ecosystem
Ownership
Parent: Comcast Corporation
Subsidiaries